The man accused of killing a 2-year-old girl known as "Baby Doe" after her body washed up on a Boston Harbor island has been found guilty.

Michael McCarthy was charged with first-degree murder in the 2015 death of the girl who was later identified as Bella Bond.

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McCarthy was convicted of second-degree murder. The verdict was announced at 11 a.m.

A computer-generated image of the child was shared by millions on social media as authorities tried to identify her after her body was found by a woman walking her dog on Deer Island.

The girl's mother, Rachelle Bond, testified that McCarthy killed her daughter. McCarthy's lawyer said it was Bond who killed the girl.

Bond testified during the trial, a requirement of her own plea agreement, and said that she saw McCarthy punch the child in the stomach. The girl was on the bed and Bond said her whole body bounced with the force of the blow.

Bond said McCarthy also threatened to kill her when she tried to leave the room with the girl's body.

In a later discussion, Bond said she asked McCarthy what he did.

"He said, 'It was her time to die. She was a demon,'" she testified.

Defense attorney Jonathan Shapiro focused on trying to undermine Bond's testimony. He said that she killed the child and called her statements during five days of testimony: "A web of lies."

"Rachelle Bond made up the story she told you," he said. "The story she told was clearly made up to cover her own guilt."

Assistant District Attorney Deakin emphasized to the jury that they must not judge McCarthy, Bond and the other individuals involved in the case as a group of addicts. He urged them to weigh the facts in the evidence and rule out bias or conjecture.

The prosecution finished with stern assertions that dumping a body in a bag only affirms guilt and not innocence.